966694 V Belt for Volvo Penta AQ115 AQ120 AQ125 AQ130 AQ140 AQ145 AQ165 AQ170 BB230 BB250 | JLM Marine

V Belt for Volvo Penta AQ115 AQ120 AQ125 AQ130 AQ140 AQ145 AQ165 AQ170 BB230 BB250 | JLM Marine

This V Belt is designed as a direct replacement for Volvo Penta sterndrive and inboard engines, including the AQ series (AQ115, AQ120, AQ125, AQ130, AQ140, AQ145, AQ165, AQ170) and BB series (BB230, BB250). Engineered to OEM specifications, this belt ensures reliable performance and proper tension for your engine's accessory drive system.

This part directly replaces Volvo Penta OEM part numbers 966694, 966694-2, and 834548, as well as Sierra Marine OEM part number 18-4044. It provides a cost-effective aftermarket solution without compromising on quality or fitment.

• Includes 1 X V Belt
• Fits multiple Volvo Penta AQ and BB engine models
• Direct replacement for OEM part number 966694

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

Each package contains the following components:

• 1 X V Belt

Installation Guide

1. Disconnect the battery to ensure safety before working on the engine.
2. Locate the old V belt on your Volvo Penta engine's accessory drive system.
3. Release tension on the belt by loosening the alternator or tensioner mounting bolts.
4. Remove the old belt from all pulleys, noting the routing path for reference.
5. Inspect all pulleys for wear, damage, or debris; clean if necessary.
6. Route the new V belt around the pulleys following the original path.
7. Adjust the alternator or tensioner position to achieve proper belt tension.
8. Tighten all mounting bolts securely once proper tension is achieved.
9. Check belt alignment across all pulleys to prevent premature wear.
10. Rotate the engine manually to ensure the belt runs smoothly without slipping.
11. Reconnect the battery and start the engine to verify proper operation.
12. Recheck belt tension after the first few hours of operation and adjust if needed.

Troubleshooting & FAQ

Q: How do I confirm this V belt fits my Volvo Penta engine?
A: Cross-reference your engine model with the Compatible Engine Models table above. You can also verify your OEM part number matches 966694, 966694-2, 834548, or Sierra 18-4044.

Q: How often should I replace the V belt?
A: Inspect your V belt annually or every 100 hours of operation. Replace it if you notice cracks, glazing, fraying, or loss of tension. Typical service life is 2–4 years depending on usage and operating conditions.

Q: What are common signs that my V belt needs replacement?
A: Squealing noises during startup or acceleration, visible cracks or wear on the belt surface, poor alternator charging, and slipping under load are all indicators that replacement is needed.

Q: Can I install this belt myself or do I need a mechanic?
A: If you have basic mechanical skills and tools, you can replace the belt yourself by following the installation steps. However, professional installation is recommended to ensure proper tension and alignment.

Q: What's the difference between OEM and aftermarket V belts?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.